MP4→FLVConverter
Convert your MP4 files to FLV format instantly. Free, fast, and secure - your files never leave your browser.
↔ Convert FLV to MP4 insteadDrop file or click to browse
Max 100MB • Auto-deletes after 3 min
How to Convert MP4 to FLV
Upload Your File
Drag & drop your MP4 file or click to browse. Files up to 100MB are supported.
Convert
Click "Convert to FLV" and wait a few seconds for processing.
Download
Download your converted FLV file instantly. No registration needed.
Why Convert MP4 to FLV?
Converting MP4 to FLV can improve compatibility, enable editing in specific software, or optimize file size for your target platform.
About MP4 and FLV
What is MP4?
MP4 (MPEG-4 Part 14) is the most universally-supported video container format, compatible with virtually all devices, browsers, and platforms. It typically uses H.264 or H.265 video codecs.
What is FLV?
FLV (Flash Video) was the dominant web video format during the Flash era. While Flash is deprecated, many archived videos still exist in FLV format.
Frequently Asked Questions
How do I convert MP4 to FLV?
Upload your MP4 file using the converter above, then click "Convert". Your file will be processed and you can download the converted FLV file immediately. The entire process takes just seconds.
Is it free to convert MP4 to FLV?
Yes, ModConvert is completely free to use. There are no hidden charges, no registration required, and no watermarks on your converted files.
Is my MP4 file safe when converting?
Absolutely. Your files are processed securely and are never stored permanently on our servers. Files are automatically cleaned up after conversion to protect your privacy.
What is the maximum file size for MP4 to FLV conversion?
You can convert MP4 files up to 100MB in size. This covers most common use cases for video files.
Can I convert multiple MP4 files at once?
Yes, you can upload and convert multiple MP4 files. Each file will be converted to FLV format individually for the best quality results.